Home / 1,243,648.21-1,865,263.64-345,181.23

Finding the Fourth Proportional to 1,243,648.21, 1,865,263.64 and 345,181.23

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Solution

The fourth proportional to 1,243,648.21, 1,865,263.64 and 345,181.23 is: 517,713.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,648.21 : 1,865,263.64 = 345,181.23 : x
  2. Step 2: Convert to fraction form
    1,243,648.21/1,865,263.64 = 345,181.23/x
  3. Step 3: Cross multiply
    1,243,648.21x = 1,865,263.64 × 345,181.23
  4. Step 4: Simplify right side
    1,243,648.21x = 643,853,997,529.48
  5. Step 5: Solve for x
    x = 643,853,997,529.48/1,243,648.21
  6. Step 6: Final answer
    x = 517,713.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.